Two cache lines, sure, on earlier models, but not two VM pages!!
Maximum instruction length is 56 bytes. Early models had 8 byte cache lines, later ones 64 bytes. VM page 512 bytes.
Two cache lines, sure, on earlier models, but not two VM pages!!
Maximum instruction length is 56 bytes. Early models had 8 byte cache lines, later ones 64 bytes. VM page 512 bytes.
I might be mistaken then, but I recall reading something about most extreme decode on VAX going into ~522 bytes.
What I am more certain of was complaints about possibly ending with maaaany TLB lookups (and pagetable walks) for certain "business" optimized instructions.